Manual impression based bidding where user pays per thousand
impressions. See ManualCpmBiddingScheme for more
details.

PAGE_ONE_PROMOTED

Page-One Promoted is an automated bid strategy that sets max CPC bids
to target impressions on page one or page one promoted slots on
google.com. See PageOnePromotedBiddingScheme for
more details.

TARGET_SPEND

Target Spend (Maximize Clicks) is an automated bid strategy that sets
your bids to help get as many clicks as possible within your budget.
See TargetSpendBiddingScheme for more details.

TARGET_CPA

Target CPA is an automated bid strategy that sets bids to help get
as many conversions as possible at the target cost per acquisition
(CPA) you set. See TargetCpaBiddingScheme
for more details.

TARGET_ROAS

Target ROAS is an automated bidding strategy that helps you maximize
revenue while averaging a specific target return on average spend (ROAS).
See TargetRoasBiddingScheme for more details.

MAXIMIZE_CONVERSIONS

Maximize conversions is an automated bidding strategy that automatically sets bids to help
get the most conversions for your campaign while spending your budget.
See MaximizeConversionsBiddingScheme for more details.

MAXIMIZE_CONVERSION_VALUE

Maximize conversion value is an automated bidding strategy that automatically sets bids to
maximize revenue while spending your budget.
See MaximizeConversionValueBiddingScheme for more details.

TARGET_OUTRANK_SHARE

Target Outrank Share is an automated bidding strategy that sets bids
based on the target fraction of auctions where the advertiser should
outrank a specific competitor. See TargetOutrankShareBiddingScheme
for more details.

NONE

Special bidding strategy type used to reset the bidding strategy at AdGroup and
AdGroupCriterion.